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MOLD CORE [16 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2017-04-20

English

Subject field(s)
  • Plastics Manufacturing
  • Packaging in Plastic
DEF

A molding process in which two different materials are injected... into a mold cavity to produce products having surfaces of one plastic with desirable characteristics and a core of another material with its desired characteristics.

CONT

Sandwich injection molding refers to the production of a sandwich structure via injection molding. Different polymer melts are injected into the cavity through the same gate ... a characteristic sandwich structure with a skin and a core layer is formed.

OBS

co-injection moulding: Although this term is commonly used as a synonym for sandwich injection moulding, it can also be used in a more general sense to indicate the injection of two or more polymers.

French

Domaine(s)
  • Plasturgie
  • Emballages en matières plastiques
CONT

Le procédé d’injection sandwich consiste à injecter, à l’aide d’une presse bimatière et d’un moule standard, une pièce constituée d’une âme (ou cœur) et d’une peau (ou enveloppe) réalisées dans deux polymères différents. L’injection des deux matériaux peut être séquentielle [...] ou simultanée.

CONT

Les applications potentielles de l’injection sandwich sont très variées notamment pour la réalisation d’emballages «actifs» ou «intelligents» (ayant une action contrôlée sur le contenu du produit), l’intégration de nouvelles fonctionnalités (en particulier sensorielles).

OBS

Bien que, en théorie, le nombre de matériaux ne soit pas limité, la majorité des pièces réalisées à ce jour n’en associent que deux.

OBS

co-injection : Ce terme est aussi utilisé dans un sens plus général, indiquant l'injection de plus d'un polymère.

OBS

sandwichs (pl.) : Cette graphie, puisée des Rectifications de l'orthographe recommandées par le Conseil supérieur de la langue française, est attestée dans le Petit Robert (2006).

OBS

Pluriel : des sandwichs; des sandwiches.

Spanish

Save record 1

Record 2 2014-11-26

English

Subject field(s)
  • Sculpture
CONT

In sculpture, the solid internal portion of a mold for casting a hollow piece of sculpture.... the core is made of foundry sand in both sand casting and the lost-wax process.

French

Domaine(s)
  • Sculpture
CONT

Le bronze ne remplit pas la totalité de la statue, et le noyau servira de support au métal en fusion, en remplissant le vide intérieur. Une armature, qui restera dans le bronze, soutiendra l'œuvre achevée [...] et sera prise dans le noyau formé de plâtre, de silice et d'eau.

Spanish

Save record 2

Record 3 2014-04-11

English

Subject field(s)
  • Plastics Manufacturing
DEF

Dimensional distortion of a plastic object after moulding or other fabrication.

CONT

A serious problem encountered with complex-shaped injection-molded parts is warpage... Possible causes for warpage include overpacking in the gate area because of high injection pressure, improperly balanced core and cavity temperatures, molded-in strains caused by low stock temperature or the mold being too cold, too long a flow, insufficient gates, improper design, nonuniform walls, improperly balanced multiple gates, the part being ejected when it is too hot, or inadequate or poor location of the knockout mechanism.

OBS

warpage; warping: terms and definition standardized by ISO [International Organization for Standardization].

French

Domaine(s)
  • Plasturgie
DEF

Distorsion dimensionnelle d'un objet en plastique après moulage ou une autre opération.

OBS

gauchissement; gauche : termes et définition normalisés par l'ISO [Organisation internationale de normalisation].

Spanish

Campo(s) temático(s)
  • Fabricación de plásticos
DEF

Distorsión dimensional de un objeto plástico después del moldeo o de otra operación.

Save record 3

Record 4 2011-06-20

English

Subject field(s)
  • Foundry Practice
DEF

In casting, an indentation in the parting line of a pattern plate that ensures that cope and drag will have good contact by producing a ridge of sand that crushes against the other surface of the mold or core.

French

Domaine(s)
  • Fonderie
DEF

Rainure pratiquée sur la plaque modèle et sur les portées de noyaux pour obtenir un cordon en relief sur le joint du moule et les portées.

Spanish

Save record 4

Record 5 2007-11-19

English

Subject field(s)
  • Plastics Manufacturing
CONT

Up to an ovality(container width/container thickness) ratio of 1. 5/1 quite satisfactory containers can be blown from circular-cross-section parisons.... Generally the ovalization is done to the parison mold; the core rod remains round.

French

Domaine(s)
  • Plasturgie
OBS

Un contrôle poussé des processus de fabrication garantit à la poudre un aspect sphérique à 97 % (ratio d'ovalisation [inférieur à] 1,5), et une teneur minimale en contaminants nuisibles aux performances de la crème.

Spanish

Save record 5

Record 6 2003-03-20

English

Subject field(s)
  • Plastics Manufacturing
  • Medication
DEF

A mold into which a plasticated material is introduced from an exterior heating cylinder.

CONT

The preform mold consists of four major components : preform cavity, injection nozzle, neckring insert, and core rod assembly.

CONT

Figure 82.6. The indexing table of a three-station injection blow-molder. On the right are the parison preform molds. On the left are the bottle blow molds. In the center is the stripper bar. Mounted to the indexing table are three sets of core rods.

OBS

injection mould: term standardized by ISO.

Key term(s)
  • preform mould
  • parison preform mould
  • parison mould

French

Domaine(s)
  • Plasturgie
  • Médicaments
CONT

À partir d'un matériau plastifié par la chaleur, on procède à l'injection sous forte pression [...] de ce matériau à travers une buse de faible diamètre, dans une cavité du moule à préforme.

OBS

moule à injection : terme normalisé par l'ISO.

Spanish

Campo(s) temático(s)
  • Fabricación de plásticos
  • Medicamentos
Save record 6

Record 7 1999-12-20

English

Subject field(s)
  • Foundry Practice
DEF

Repair of a furnace lining or a mold core.

French

Domaine(s)
  • Fonderie
DEF

Réparation d'un cubilot fissuré par décapage de l'intérieur de la colonne de fusion et reconstitution de la zone de fusion cylindrique.

Spanish

Save record 7

Record 8 1998-06-05

English

Subject field(s)
  • Foundry Practice
DEF

Hoop or arched connection between the core hook and ladle or between crane hook and mold trunnions.

French

Domaine(s)
  • Fonderie

Spanish

Save record 8

Record 9 1998-05-29

English

Subject field(s)
  • Foundry Practice
DEF

Metal support that holds a core in place within a casting mold; molten metal solidifies around a chaplet and fuses it into the finished casting.

French

Domaine(s)
  • Fonderie

Spanish

Save record 9

Record 10 1998-02-02

English

Subject field(s)
  • Plastics Manufacturing
CONT

Insulated runner molds. A combination between a hot runner mold and a three-plate mold is called an insulated runner mold. The gating system is very similar to that of a three-plate mold except that the runners are very thick, at least 1 3/4in.(45mm) in diameter. There is no runner plate, and the backup plate and A plate are held together by latches. After the material is injected, the outside of the runner freezes but insulates the center, permitting the core to remain fluid at molding temperatures and act as a hot runner.

French

Domaine(s)
  • Plasturgie
Key term(s)
  • moule à canal isolé

Spanish

Save record 10

Record 11 1997-12-17

English

Subject field(s)
  • Plastics Manufacturing
CONT

The injection blow-molding process requires two molds : one for molding the preform or parison, the other for molding the bottle. The preform mold consists of four major components : preform cavity, injection nozzle, neckring insert, and core rod assembly.

French

Domaine(s)
  • Plasturgie
CONT

L'intérêt d'une pression élevée réside dans : [...] la compensation des forces de frottement et des pertes de pression dans le bloc de répartition et dans les buses d'alimentation des empreintes; [...]

OBS

À partir d'un matériau plastifié par la chaleur, on procède à l'injection sous forte pression [...] de ce matériau à travers une buse de faible diamètre, dans une cavité du moule à préforme. Sous l'effet de la pression, le matériau plastifié remplit la cavité et se solidifie au contact des parois du moule. On obtient la préforme, c'est la phase d'injection.

Spanish

Campo(s) temático(s)
  • Fabricación de plásticos
Save record 11

Record 12 1997-12-17

English

Subject field(s)
  • Plastics Manufacturing
CONT

The injection blow-molding process requires two molds : one for molding the preform or parison, the other for molding the bottle. The preform mold consists of four major components : preform cavity, injection nozzle, neckring insert, and core rod assembly.

French

Domaine(s)
  • Plasturgie
CONT

À partir d'un matériau plastifié par la chaleur, on procède à l'injection sous forte pression [...] de ce matériau à travers une buse de faible diamètre, dans une cavité du moule à préforme. Sous l'effet de la pression, le matériau plastifié remplit la cavité et se solidifie au contact des parois du moule. On obtient la préforme, c'est la phase d'injection.

Key term(s)
  • cavité du moule

Spanish

Save record 12

Record 13 1997-11-26

English

Subject field(s)
  • Plastics Manufacturing
CONT

The preform mold consists of four major components : preform cavity, injection nozzle, neckring insert, and core rod assembly.

CONT

The core rod assembly ... has four functions or features: It forms the interior of the preform. It supports the parison or the bottle during transfer. It is the valve where air enters to expand the parison. The valve is located either in the shoulder area or in the tip, the location being governed by the bottle or core rod length-to-diameter ratio. Wide mouth bottles (that is, core rods with low length-to-diameter ratios) will usually have a shoulder valve. The core rod has a "blow by" groove. This annular groove, located near the seating shank ... is needed to seal the parison and prevent excessive air loss during bottle blowing and to eliminate elastic retraction of the parison during the transfer between cavities.

CONT

Even though the parison is exposed to the air, melt strength is not as crucial because of the support provided by the parison core rod.

OBS

See Figure 82.21 in PLMAT, p. 1085.

French

Domaine(s)
  • Plasturgie
CONT

[...] le soufflage s'effectue en général au travers du noyau.

OBS

Voir Figure 31 dans TECHN.

Spanish

Save record 13

Record 14 1997-10-14

English

Subject field(s)
  • Plastics Manufacturing
CONT

The primary difficulty with these methods is that the injection mold and blow-mold stations must stand idle while the finished parts are removed. This led to the 1961 invention in Italy by Gussoni of the three-position method, which used a horizontal 120° indexing head with split mold parison and bottle cavities and three sets of core rods.

French

Domaine(s)
  • Plasturgie
CONT

[...] la paraison est retirée de l'empreinte alors qu'elle se trouve dans l'état plasto-élastique, puis est transférée dans le noyau autour duquel le plastique a été moulé, dans le moule de soufflage. Ce transfert est programmé par la rotation de 120° d'une tourelle servant de support au noyau à l'aide d'un dispositif d'indexation entraîné par un moteur [...]

Spanish

Save record 14

Record 15 1985-12-12

English

Subject field(s)
  • Micrographics
DEF

a mold or form upon which articles are shaped or formed with the use of a mandrel(bar used as a core).

French

Domaine(s)
  • Micrographie
DEF

moulure ou forme sur laquelle sont moulés les articles au moyen d'un mandrin (barre servant de noyau).

Spanish

Save record 15

Record 16 1982-11-18

English

Subject field(s)
  • Casting and Patternmaking (Metal Processing)
OBS

Casting in a mold, where core(s) shape(s) the interior or exterior of a casting.

Key term(s)
  • core-mould casting

French

Domaine(s)
  • Moulage et modelage des métaux
OBS

Coulée dans un moule où le noyau donne la forme intérieure ou extérieure d'une pièce.

Spanish

Save record 16

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